i'm wolf blitzer in jerusalem. erin burnett "outfront" starts erin burnett "outfront" starts right now. -- captions by vitac -- www.vitac.com >>> "outfront" next, a new week of conflict begins between israel and gaza. no end in sight tonight. israel's ambassador to the united states "outfront." thousands of israeli troops with tanks are now poised at the gaza word border, ready to move in in a ground invasion if necessary. israel says a ground war is a possibility, but does it add up? and new questions tonight in the benghazi investigation. congress wants to know who changed the talking points an why and we think we know who did. let's go "outfront." good evening, everyone, i'm erin burnett. tonight, under attack. day six of the conflict between israel and gaza. is there an end in sight? tonight, thousands of israeli troops are poised at the border, ready to move at gaza. negotiations are ongoing and tonight, the united nations secretary general ban ki-moon arrived in cairo just hours after egypt's intelligence chi